Attachment for combination-locks.



W. O. JOHNSON.

ATTACHMENT FOB COMBINATION LOOKS,

APPLICATION mum APB..1,] .B08. 7

919,177. 'Patnted Apr. 20, 1909.

Wilncano W Johnson for Combination Locks;

or BLUNT, SOUTH DAKOTA.

WILLIAM O. JOHNSON,

ATTAGEMENT EOE COMBINATION-LOCKS.

Application filed. April 1,

1'0 all whom it may concern:

Be it known that 1, WILLIAM O. Jonnson, a citizen" of the United States, residing at Bluntfin the county of Hughes and State of SouthDakota, have invented certain: new

and-,nsofill Improvements Attachments and I do hereby declare. the following to be a full, clear, and e'xact description of the invention,'such as will enable others skilled in the art to which it ap pertains to make and use the same.

This invention relates to attachments forcombinationlocks and has primarily for itsobject-to provide a" novel attachmen't' to facilitate thetnrning ot the bearing knob of the dial plate employed in con nncti-on with a combination look v tion to provide a novel It is furthermore .an object of the invenattachment or: this character which may be easily -applied or removed from the knob.

ltis a further object of provide afnovel device of the invention to automatically bind against the knobor shank thereot to be rotated.

"It is also an object of the invention to pro vide a "novel device of this character that 'will be simple in construction,

practice and comparatively inexpensive [to mannfact-ure. V a

WVit-h the abovev and other objects in vie w,

the invention consists in the details of construction and in; the novel arrangement and combination of'parts to be hereinafter referred to. M

In describing the invention in detaihreference will be had to the accompanyingdrawingsv forming part of this specification, wherein like characters of reference denote corresponding parts in in which, v

Figure 1 is a view in elevation of a frog mentof a. safe door, showing the invention in applied position, 'Fig. 2 is a View in side elevation of theinvention, detached.

In the drawings, 1 denotes a fragment of a safe door having thereon an annular rib 2, within which rotates the dial plate 3,

the several views, and

Specification of Letters Yatent.

which is carried le s Y this character possessingsuch resiliency as to efficient in Patented April so, 190a.

1903. Serial No. 424,578.

by the knob, or more particularly, the shank thereof, indicated in l Fig. l-by dotted lines. The attachment for 3 engaging the shank 5 is formed from. a sinsteel wire having one end bent 6, the distance between the of the hook and the body gle piece of tojform a-hook free endportion or stem 7. being. less .knob QI' ,-Sl1LI)l which it is. intended. to on This-free end portion 8 is curved ontwardly i'n order that it may; be readil} applied to'the shank, said curvedportion S than the diameter of the acting as a guide, as will, it: is thought, he

fully appreciated. I

The end portion of the bodyl", the hook (i, is bent at appzeoximately right angles to form an operatingfhandle 9. This.

angular portion 9 1 1s also arranged on a opposed to plane atv right angles to the planeof the,

hook 6.

As the attachment is it possesses a certain amount of natural resiliencywhich 'will readily perm t the hook being passed over the shank 5 of the knob and this resiliencj will further cause the hook to bind against the shank 5 when in applied position, so that when the attachment is rotated by grasping the handle 9, it will cause the knob to-readily rotate in the desired direction. 1

I claim? a X As a new article of manufacture, an oper ating attachment for the knob of a dial consisting of'a single piece of wire having one tend 'ortion bent to form a hook, said bent ortion extending beyond either side of the plane of the body of the isite' end portion bein bent in a plane at right' i liigls. tort lie jfreeend portion of the hook being arranged on an outward curve with relationto the In testimony whereof have signedmy nameto this speclncation 1n the presence t two subscribingwitnesses.

WILLIAM o; JOHNSON.

WVitnesses I THno. QUAL-e,

W. R. PHILLIPS.

formed of steel wire,

wire and the oppo- I pane of the hook, the I 

